/r/askscience

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Do mosquitoes share blood with each other? Also, do they "steal" blood from other mosquitoes, like from a dead one for example?

4890 upvotes • MansAssMan

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How did flowers and plants reproduce before there existed bees?

4887 upvotes • LeanderD

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Why isn't serotonin able to cross the blood-brain barrier when molecules like psilocin and DMT can, even though they're almost exactly the same molecule?

4877 upvotes • Deleizera

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How does the ISS avoid being hit by comets, asteroids, rocks, debris, etc.?

4873 upvotes • holybanana_69

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How did wild sheep live a lifetime without the possibility to have their wool cut?

4873 upvotes • dubidubat

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How/why did the Dancing Plagues occur? Why aren't there any dancing plagues (or similar) today?

4872 upvotes • Riksor

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[Biology] Is it theoretically possible for a human to stop producing digestive waste?

4871 upvotes • ThePlanetX

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If there is no friction in space, how do the thrusters work on space shuttle?

4870 upvotes • FuzzyCamron

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Does Earth's gravitational field look the same as Earth's magnetic field?

4870 upvotes • FoxBattalion79

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Do bees know they’ll die if they sting another animal?

4870 upvotes • thebombchu

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
Do mosquitoes share blood with each other? Also, do they "steal" blood from other mosquitoes, like from a dead one for example?	4890	MansAssMan
How did flowers and plants reproduce before there existed bees?	4887	LeanderD
Why isn't serotonin able to cross the blood-brain barrier when molecules like psilocin and DMT can, even though they're almost exactly the same molecule?	4877	Deleizera
How does the ISS avoid being hit by comets, asteroids, rocks, debris, etc.?	4873	holybanana_69
How did wild sheep live a lifetime without the possibility to have their wool cut?	4873	dubidubat
How/why did the Dancing Plagues occur? Why aren't there any dancing plagues (or similar) today?	4872	Riksor
[Biology] Is it theoretically possible for a human to stop producing digestive waste?	4871	ThePlanetX
If there is no friction in space, how do the thrusters work on space shuttle?	4870	FuzzyCamron
Does Earth's gravitational field look the same as Earth's magnetic field?	4870	FoxBattalion79
Do bees know they’ll die if they sting another animal?	4870	thebombchu